We haven't used Zoom for webinars, but have been using GoToMeeting/GoToWebinar for some time. Here's what we like and don't like:
Pros
- Easy program set-up - We connect each Marketo program to GoToWebinar by selecting the webinar from within the Marketo UI
- Fast integration - Registration data gets passed to GTW quickly, with registrants receiving their confirmation email within a minute or two (we still send the confirmation emails from GTW)
- Easy attendee tracking - Attendee/no show data automatically gets pushed back into Marketo. We've automated the follow-up process to webinars using tokens and triggered emails, so we don't have to touch anything after a webinar is over.
Cons
- The integration has had some sketchy periods - it seems like at least once a year there's an inexplicable error in the integration for a large portion of customers.
- Registration errors - Beyond the larger integration failures that customers experience, we periodically have to reconnect our GTW integrations (we have several accounts) from within Marketo. I've gotten into a habit of checking a daily error report to make sure we stay on track.
Hopefully someone else can speak to Zoom